Window-sash.



PATENTED MAR. l5, 19104.-

G.'H. LAWRENCE. WINDOW SASH.

APPLICATION FILED NOV. 10, 1903.

llllmli lilt 4 H0 MODEL.

THE uonms mavens ed, PuoTMrmb WASHINGTOM'D, l;

UNITED STATES Patented March 15, 1904:.

PATENT OFFICE.

WlNDOW-SASH.

SPECIFICATION forming part of Letters Patent No. 754,575, dated March15, 1904. Application filed November 10, 1903- Serial No. 180,612. (Nomodel.)

To all whom it may concern:

Be it known that I, GEORGE H. LAWRENCE, a citizen of the United States,residing at Middletown, in the county of Orange and State of New York,have invented certain new and useful Improvements in Window-Sashes, ofwhich the following is a specification.

This invention relates to improvements in that type of window-sashoperable by means of a spring-roller adapted to normally exert a tensionto raise the Sash, and aims to provide a general simplicity of structuremore especially adapted for use in cars. The sash is adjustable todifferent positions relative to the window-opening, and lock means areprovided,

whereby the desired adjustment of the sash may be secured.

For a full description of the invention and the merits thereof and alsoto acquire a knowledge of the details of construction of the means foreffecting the result reference is to be had to the following descriptionand drawings hereto attached.

While the essential and characteristic features of the invention aresusceptible of modification, still the preferred embodiment of theinvention is illustrated in the accompanying drawings, in which- Figurel is a perspective view of a window, showing the-application of theinvention thereto. Fig. 2 is avertical sectional view through a windowwith the invention applied. Fig. 3 is a broken view showing the relativedisposal of the roller when mounted in the brackets.

Corresponding and like parts are referred to in the followingdescription and indicated in all the views of the drawings bythe same.

reference characters.

The window-sash is designated by the numeral 1 and is of any ordinarystructure as usually employed. The sash is vertically movable,sliding inways on the window-frame, being held in position by lock means, whichwill be more fully described hereinafter. Upon the upper portion of thewindow-frame and mounted transversely thereof between the jambs 2 is aspring-roller 3, which roller is of any suitable form adapted for thepurpose of the invention and sufliciently substantial to raise thewindow-sash 1 when the latter is released by operation of the lockmeansaforesaid. The roller 3 is supported by brackets 4, which bracketsare provided with securing members 5 at their lower portions, withinwhich are formed openings through which screws or like fastenings arepassed, whereby the brackets are attached to the window-frame, as willbe readily comprehended. The lower portions of the brackets 4 areprovided with laterally-extending stops 6, the purpose of which will beseen as the description proceeds. From the roller 3 extends a cord orlike flexible support 7, the ends of which are attached to the rollerand which pass under pulleys 8, mounted in brackets 9, secured to theupper side of the sash 1. Brackets 9 are attached by screwfastenings oranalogous means. Adjacent the brackets 9 and upon the upper side of thesash are secured the rubber buttons 10, which are adapted to engage thestops '6 of the brackets 4 to limit the upward movement of the sash, aswell as to serve as cushion means to prevent injury should the sash beaccidentally released and carried upward by the spring-roller. The cord7, which suspends the sash in the window-frame, equalizes in a mannerwhich will be easily understood as the sash 1 moves upwardly, this beingof importance to the perfect operation of the invention.

The sash is adapted for adjustment at different heights, as beforementioned, the rackbar 12 being secured to a side of the windowframe tobe engaged by the lock means carried by the window. The lock meansconsists of the casing 13, secured to the lower portion of the sash,within which is mounted the bellcrank member 14. One of the arms of themember 14 projects without the casing and is formed into a finger-piece15 to be grasped in operating the look. A latch-bolt 16 is slidablewithin the casing and is providedwith a lug 17 which is engaged by theinner arm of the member 14 in actuating the said bolt.

In the operation of the device it is only necessary to actuate thefinger-piece 15 so as to disengage the latch-bolt 16 from the rack-barand the sash will move upwardly under the influence of the spring-roller3 and may be locked at any desired adjustment by release of thefinger-piece. As the sash moves upwardly the cord 7 winds upon theroller and equalizes,

as described hereinbefore.

Having thus described the invention, what is claimed as new is- 1. In adevice of the class described, the combination with a window-frame,brackets secured to the said frame, stops projected from said brackets,a spring-roller mounted in the said brackets, a sash movable in thewindowframe, connecting means between the springroller and the sash foractuation of said sash, the movement of the sash being limited by thestops of the brackets aforesaid.

2. In a device of the class described, the combination with awindow-frame, brackets secured to the said frame, a springroller mountedin the said brackets, stop-flanges proets aforesaid to limit the upwardmovement of the sash.

In testimony whereof I afiix my signature in presence of two witnesses.

GEORGE H. LAWRENCE. [11. s]

Witnesses IRA CODDINGTON, RUSSELL Rooms.

